CVE-2026-13308 Autel MaxiCharger AC Elite Home WebSockets Integer Underflow Remote Code Execution Vulnerability
Remote attackers can execute arbitrary code on Autel MaxiCharger AC Elite Home EV chargers via an integer underflow in WebSocket handling without authentication.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-13308?
CVE-2026-13308 is a high-severity vulnerability in Autel MaxiCharger AC Elite Home, published on 29 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Autel MaxiCharger AC Elite Home WebSockets Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Autel MaxiCharger AC Elite Home EV chargers. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the handling of WebSocket messages related to the OCPP service. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of the device. Was ZDI-CAN-29113.
Weakness: CWE-191
Which versions are affected by CVE-2026-13308?
How do I fix CVE-2026-13308?
No fix has been published for CVE-2026-13308 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-13308 being exploited?
There is no known exploitation of CVE-2026-13308 in the wild and no public exploit code.
Sources
Also known as GHSA-h225-8qf9-jw2x.